Car-door mechanism



Nov. 23 1926.

J. H. CRUMB CAR DOOR MECHANISM Filed July 28 1925 INVENTOR.

Hi4 ATTORNEY;

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Patented Nov. 23, 1926.

JOHN H. CRUMIB, a iverronar. MILITARY norm, KANSAS.

can-noon MECHANISM.

Application filed m 192 5. serial No. 46.522.

llfy invention relates to improvements in car door mechanisms.

One of the objects of my ini' 'eiition is to provide novel and easy means for moving a car door from and to the closed position.

A further object of my invention is to provide anovel car door holding mechanism, which is simple, cheap, durable, strong, not liable to get out of order, by which the door may be reliably held closed or open. and with which it may be held firmly seated against outward pressure.

My invention provides further novel means for locking the car door in the closed position; p

The novel features of my invention are herci'na 'ter fully described and claimed.

In the accompanying drawing, w iich illustrates the preferred einbo'din'ient of my in 'ention,

Fig. 1 is a side elevation of my improved car door mechanism, shown mounted on a car body which is partly broken away.

Fig. 2 is a cross section on the line 22 of Fig. 1-. y

A 3 is a horizontal section on the line of Fig. 1.

Fig. 4 is a horizontal section on the line 44 of Fig. 1, some of the parts b'el'ow being omitted.

Fig. 5 is an eiilarged front elevation of the rock bar locking mechanism.

Fig. 6 is a horizontal section on the line 66 of Fig. 5.

Similar reference characters similar parts in the different views.

1 designates an ordinary grain car body having the usual side doorway 2, adapted to designate be closed by door 3, which is adapted for horizontal travel to and from the closed position by means of hangers 4, secured to the upper portion thereof and having respectively mounted therein rollers 5, mounted and adapted to run upon a door support comprising a horizontal longitudinal bar 6 fastened to the car body 1, and extending above the doorway 2.

For easily moving the door to and fro, particularly from the closed position, when the car is loaded with grain which bears against the door, there is fastened to the outer side of the latter a fulcrum plate 7, which projects beyond the rear edge of the door and is provided with a transverse hole 8, adapted to have extended therethrough a removable lever 9, Fig. 4, which is adapted to enter any one of a series of holes arranged in a longitudinal row in a: horizontal bar 11, which is fastened to the outer side of the car body 1, at theright of the doorway 2, as viewed in Figs. 1, 3 and 4.

12 designates an outwardly projecting stop plate fastened to the outer side of the car body 1 and adapted to be struck by the rear edge of the car door 3 for limiting the opening moveinentof the latter. By rocking the l ver 9', in the plate 7 and changing the lever from one hole 10 in the bar 11 to other holes in said bar, with a ratchet like moveme 't, the door 3 may be moved to and from the open position.

For holding the door ,3 either open or closed, the door has moui'i'ted in it, and e50 tending outwardly, an abutment, which may comprise a pin 13, which is adapted to be one ged by either of two arms 14 and 15,. which are rigidly secured to a horizontal rock var 16 pivotally mounted in bearing plates 17, which are fastened to the outer s'id'e of the car body 1, so that thereon bar 16 shall extend horizontally below the doorway2'. V

The rock bar 16 has atone end, the left, as shown in Fig. 1 an operating arm 18 b which the rock bar can be rocked to the locking position shown in Fig: 1, or to the unlocked position shown in 2, in dotted lines. I

hen the door is moved to the open position, shown in dotted lines in; Fig. 1, and the rock air 16 is rocked by the arm 18 to the lockin position, shown in Fig. 1, the arm 15 will be at the left of and inthe path or the pin 13, thus holding the door 1 from being jarred shut.

To close the door, the operating arm 18 is swung to' rock the rock bar 16' to the unlocked posi Ion, upon which the door may be slid to the closed position, shown in F ig. 1. The arm 18 is then swung to the locking p0 sition, in which the pin'1'3 will be at the left of the arm 14, thus holding the door from opening.

To lock the arm 18 in the locking position, it is provided with a slot 19 adapted to receive therethrough a staple 20 which is provided in the adjacent jamb of the doorway. Pivoted on the arm 18 is a latch hook 21, having two prongs 22 and 23, the prong 22 being adapted to enter and pass through the staple 20, and being provided on its outer side with a depression or recess 24 adapted to receive the staple tohold the prong from accidental disengagement with the staple.

The arm 18 is preferably resilient, so that when the arm 14 bears against the door, the arm 18 may be sprung inwardly to enable the prong 22 of the latch 21 to enter the staple. The tension of the arm 18, thus holds the staple 20 in the recess 24:.

To lock the latch to the staple 20, the prongs 22 and 23are each provided with a hole adapted to receive therethrough the wire 25 of an ordinary car door seal 26, see Fig. 5.

If desired, the door 3 may have mounted in it an additional pin 27 adapted to engage with an arm 28 with which the rock bar 16 may be provided, for assisting in holding the door closed.

In the operation of the invention, after the seal 26 has been detached, the arm 18 may be swung to rock the bar 16 tothe unlocked position, the latch 21 having been freed from the staple- 20. The lever 9 may then be inserted through the hole Sinthe plate 7 and into the adjacent hole 10 in the perforated bar 11. The lever is then swung to the right, thereby starting the door 3 to ward the open position. The lever 9 is then inserted in the next adjoining hole 10 to the right, and the lever again swung to the right. This operation isrepeated. until the door can be easily pushed to the fully open position by hand.

Upon closing the door, the lever 9 may be used, if needed, to crowd the door to the fully closed position, the operation of the lever, above described, being reversed. When the door is closed, the bar 16 is rocked as above described, so that the arms i l and 28 engage the door 3 at the right of the pins 13 and 27 respectively. The arm 18 is engaged with the staple, and the latch 21 also caused to engage the staple 20. The seal 26 may then be applied to the prongs 2-2 and 23, if desired.

Any suitable bar, which is at hand may be employed to effect the functions of the lever 9.

I do not limit my invention to the structure shown and described, as many modifications, within the scope of the appended claims, may be made without departing from the spirit of my invent-ion.

neoasoa door inwardly.

2. In a car door mechanism a car body, a staple thereon, a door adapted for travel on said car body, a rock bar pivoted to the body andhaving an operating arm having a hole adapted to receive therethrough said staple, the bar having an arm adapted to engage and press the door inwardly against the car body, when the latter is in the closed position, and the rock bar is'rocked toward the pressing position, and a latch pivoted to the outer side of said operating arm and havmg a prong adapted toenter said staple, said prong on its outer side having a recess adapted to receive said staple when the prong is extended therethrough.

3. In a car door mechanism, acar body, a staple thereon, a door adapted to travel on said car body, a rock bar pivoted to the body and having a resilient operating arm provided with a hole for receiving said staple, the rock bar having an arm adapted to engage and hold the door in theclosed position and for pressing the door inwardly,

and a latch pivoted to said operating arm and having a prong adapted to enter said staple, the prong on its outer side having a recess adapted to receive said staple.

4. In a car door mechanism, a car body, a staple thereon, a door adapted for travel on said body and having an abutment, a rock bar pivoted to said body and having means for engaging said abutment to hold the door open and closed and for pressing the door inwardly when the latter is in the closed position, the rock bar having a resilient operating arm having a hole adapted to receive said staple, and a latch pivoted to said operating arm and having a prong adapted to enter said staple, the prong having in its front side a recess for receiving said staple.

In testimony whereof I have signed my name to this specification.

JOHN H. CRUMB. 

